linux-kernel - Re: [PATCH 6/6] platform/chrome: cros_ec

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 6 Nov 2020 08:20:59 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Prashant Malani <pmalani@...omium.org>
Cc:     linux-kernel@...r.kernel.org, heikki.krogerus@...ux.intel.com,
        dzigterman@...omium.org, alevkoy@...omium.org,
        Benson Leung <bleung@...omium.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Guenter Roeck <groeck@...omium.org>
Subject: Re: [PATCH 6/6] platform/chrome: cros_ec_typec: Store cable plug type

On Thu, Nov 05, 2020 at 05:28:03PM -0800, Prashant Malani wrote:
> Use the PD VDO Type C cable plug type macro to retrieve and store the
> cable plug type in the cable descriptor.
> 
> Cc: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Signed-off-by: Prashant Malani <pmalani@...omium.org>
> ---
>  drivers/platform/chrome/cros_ec_typec.c | 21 ++++++++++++++++++++-
>  1 file changed, 20 insertions(+), 1 deletion(-)

Where are the first 5 patches in this series?


> 
> diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c
> index 5e7f0b4ebbec..0a2a8b0f8115 100644
> --- a/drivers/platform/chrome/cros_ec_typec.c
> +++ b/drivers/platform/chrome/cros_ec_typec.c
> @@ -709,6 +709,7 @@ static int cros_typec_handle_sop_prime_disc(struct cros_typec_data *typec, int p
>  		.port = port_num,
>  		.partner_type = TYPEC_PARTNER_SOP_PRIME,
>  	};
> +	uint32_t cable_plug_type;

u32 please, this isn't userspace code :)

>  	int ret = 0;
>  
>  	memset(disc, 0, EC_PROTO2_MAX_RESPONSE_SIZE);
> @@ -722,8 +723,26 @@ static int cros_typec_handle_sop_prime_disc(struct cros_typec_data *typec, int p
>  	/* Parse the PD identity data, even if only 0s were returned. */
>  	cros_typec_parse_pd_identity(&port->c_identity, disc);
>  
> -	if (disc->identity_count != 0)
> +	if (disc->identity_count != 0) {
> +		cable_plug_type = VDO_TYPEC_CABLE_TYPE(port->c_identity.vdo[0]);
> +		switch (cable_plug_type) {
> +		case CABLE_ATYPE:
> +			desc.type = USB_PLUG_TYPE_A;
> +			break;
> +		case CABLE_BTYPE:
> +			desc.type = USB_PLUG_TYPE_B;
> +			break;
> +		case CABLE_CTYPE:
> +			desc.type = USB_PLUG_TYPE_C;
> +			break;
> +		case CABLE_CAPTIVE:
> +			desc.type = USB_PLUG_CAPTIVE;
> +			break;
> +		default:
> +			desc.type = USB_PLUG_NONE;
> +		}
>  		desc.active = PD_IDH_PTYPE(port->c_identity.id_header) == IDH_PTYPE_ACABLE;
> +	}

So you save it but what happens with the value?

confused,

greg k-h